NMI Debug Button

The NMI Debug Button option is a simple toggle
setting that allows you to enable debug functionality when the
system has experienced a software lock-up. The NMI Debug Button
generates an NMI to allow the use of the OS debugger.

WARNING: When
enabled, pressing the NMI Debug Button on the system board during
normal OS operation generates a Blue-Screen Trap, ABEND, or Panic,
and halts the system.